gd

type Converger interface {
	Converge(context.Context, Stepper) ([]float64, error)
}

type ConvergerFunc func(context.Context, Stepper) ([]float64, error)

type CostFunc func(x [][]float64, y []float64, coeffs []float64) (float64, error)

type GradientDescent struct {
	// contains filtered or unexported fields
}

type Hyphothesis func(x []float64, coeffs []float64) (float64, error)

type Stepper interface {
	// TakeStep takes single step towards cost function minimum.
	TakeStep() error
	// CurrentCoefficients returns current coefficients calculated by stepper.
	CurrentCoefficients() []float64
	// X returns design matrix used in calculations.
	X() [][]float64
	// Y returns target vector used in calculations.
	Y() []float64
}